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Script: Ngesikhathi seenyanga ezi-4 zokugcina kokukhulelwa, i-fetus ibonisa iinkhathi zokwenzeka okuhlangeneko kuhlangene neenkhathi zokuphumula. Lezi iinkhathi zokuziphatha zibonisa ukukhula kokuhlangana kwendawo ephakathi yemizwa. | ||
All ages referenced to fertilization, not last menstrual period. One month = 4 weeks. |